Corrugated sheet piling



Oct. 29, 1929. J. MEISER CORRUGATED SHEET FILING Filed July 25, 1927 2 Sheets-Sheet 1 Oct. 29, 1929.

J. MEISER CORRUGATED SHEET FILING iled July -25 Z She'etS -Sheet 2 Lg't orneys Patented Oct. 29, 1929 EJETE JOSE]? MEISER, OF DORTMUND, GERMANY CORRUGATED SHEET FILING Application filed July 25, 1927, Serial No. 208,315, and in Germany June 28, 1926.

This invention relates to sheet piling sections for wall or cotter-dam constructions and aims to provide sections of improved inter-connecting form by which walls of increased strength or resistance moment may be produced.

The construction of metal walls by the use of inter-connecting sections of form producing a corrugated wall surface is well known and has certain recognized advantages. According to present constructions of such walls, the metal sections or sheets are usually lapped and/ or connected together by means of rivets or bolts, but such inter-connections are both time-consuming and troublesome, while the completed wallshave proven to have a relatively low reslstance moment. As there have been very few practical developments in the art, these objections in the constructions of such walls have not been eliminated.

The present invention avoids these defects and enables a wall of any desired moment of resistance to be constructed in a very simple way without the employment of rivets or other auxiliaries. It embodies the use of inter-engaging or inter-connecting sheet pile members of shape permitting them easily to be rolled to any required dimensions and thickness. The desired result is achieved by disposing the joints to the outside and designing them in a way to correspond fully to the shape of the piling and to interlock completely. These joints are disposed preferably on the outer surface planes, i. e., at opposite sides of the neutral plane or axis of the wall, since this arrangement precludes any possibility of their springing out, but on the contrary tends to lock the joint more firmly against any forces that may be brought to bear thereon, so that perfect connection is obtained under all conditions.

Walls erected in accordance with this invention are particularly suitable for the construction of channels and the like.

The invention will be best understood upo further description with reference to the accompanying drawings wherein variousembodiments thereof are illustrated.

I11 said drawings: 1 Fig. 1 is a fragmentary sectional representation of inter-connecting metallic wall sec tions embodying the invention;

Fig. 2 is a sectional representation of two sections connected in somewhat different relation;

Figs. 3 and 3 illustrate the connection of sections according to a slight modification; and V .9

Figs. 4 to 8 inclusive are fragmentary sectional representations of walls constructed from inter-connecting sections of slightly differing forms according to the principle embodying this invention.

Referring to the drawings, the metallic sections formed for inter-connection to build up a wall are of elongated S, V or U-shape (some being doubly or substantially doubly curved) whereby the completed wall will be of corrugation outline or form. It will be noted that regardless of the extent of intermediate curve or corrugation, the ends (i. e. end edges) of the sections are inter-connected in substantially the same way at opposite sides of the neutral plane or axis of the wall.

Fig. 1 illustrates the simplest type of joint satisfying the aforementioned requirements sufiiciently for small loads or pressures. The

ends (i. e. end edges) of the corrugated sec- 9 tions are so formed that a curved portion of one section may, closely embrace or engage substantially around the correspondingly formed part at'the end of an adjoining section. The extremital edge a at the curved end of one of the sections is bent inwardly and bears against-an opposing shoulder 1) formed in the outer surface of the embraced adjoining section, while the extremital edge 0 of the latter bears against a shoulder 03 formed in the inner surface of the first or embracing section, thus providing a complementary joint or union between the sections which are uniformly alike.

If the corrugated wall constructed of sheet pile members or sections interlocked in the manner described is subjected to bending stresses, the extremital edge a of the one section willbear firmly against the shoulder of the other, while the extremital edge 0 of lilU the latter will bear against the shoulder d of the first-mentioned section, in addition to which the curved end portions of the members or sections will be pressed tightly together so as practically to form an integral profile which will absorb the resistance.

Fig. 2 illustrates a similar joint or connection between two sections'except that the opposing joint edges 6 f and g: h of the respective members (corresponding with the edges 11: b and czd of these first described) are obliquely disposed so as to form a kind of wedge which makes shift-ing or slipping even more diflicult.

This principle is further developed in Fig.

. 3 where the edge Z of the embraced section has illustrates sections of elongated S or semicorrugation form (i. c. with a joint at each 7 half curve or wave.) Figs. 5 and 6 illustrate several single corrugational forms of sections, and Figs. 7 and 8 illustrate multi-corrugational forms of sections, the joints in some instances being located alternately on opposite sides of the neutral plane of the wall (see Figs. 4 and 7) and in other instances on one side only of the neutral plane of the Wall (see Figs. 5, 6 and 8).

- The distance H between joints at opposite sides of the mesne line or axis of the wall or the width of the neutral plane thereof is made to depend on the desired resistance capacityof the wall (see Figs.-4 and 5).

In" the drawings, the wall sections are shown as being of substantially uniform thickness throughout, but they may of course be dimensioned differently according to the varying load, as indicated in Fig. 1 wherein enlargement of the curved ends of the sections isrepresented by the dotted lines.

I The angle of the joints or bends in the locking ends of the sections may be varied so as to produce flattened or more arched corrugational curves, and may also be made angular instead ofrounded if desired.

Having now fully describedmy invention what I claim as new and desireto secure by Letters Patent of the United States is:

1. Means for constructing corrugated metal walls, comprising correspondingly formed sheet piling sections inter-connectible end to end, said sections having oppositely but correspondingly curved end-portions adapt-ing them. to fit complementarily togeth'er with each partially embracing and partially embraced by another and with the abutting integralshouldered enlargements in 7 its adjacent sections, whereby aninterlocking union resultstherebetween. V

3. Means for constructing corrugated metal walls, comprising corresponding curved sections or" sheet piling material inter-connectible end to end, said sections having oppositely curved end-portions adapted to fit together complementarily with each partially embracing another with the extremital edge 01": its embracing portion shouldered and engaging a shouldered integral enlargement of one adjacent section and with the extremital edge of its. embraced portion engaging a shouldered enlargement of its other adjacent section, whereby an interlock-' ing union between overlapping sections results. v 4. Sheet piling sections according to the first claim, wherein the extremital edge of each section partially embracing another is formed with a wedge-like integral enlarge- 1-00 ment engaging into a correspondingly grooved enlargement of the adjacent embraced section. 1 I

5. .Sheet piling sections according to the first claim, wherein the extremital edge of each section partially embraced by another is formed with a wedge-like integral enlargement engaging into a correspondingly grooved enlargement of its adjacent embracing section. t

6. Meansfor constructing corrugated metal walls, comprising correspondingly formed corrugationally curved sections of sheet piling material inter-connectible end to end, said sections having oppositely curved 1'15 end-portions adapted to fit complementarily each with another in partial embracement, the

extremital edges of each being adapted to engage integral-shouldered enlargements of its adjacent sections to provide an interlocking '1'20 joint therebet'ween. I

7. A wall comprising a plurality of interlocking correspondingly formed sections of sheet piling material, said sections being formed with oppositely curved end-portions terminating in hook or wedge-like extremita'l edges and having integral shouldered enlargements near to and substantially parallel with their aforesaid extremital edges, said wedge-like edges and said shouldered "en- 1 30 largements being adapted to receive related portions of embraced adjacent sections in an interlocking joint tending to bind more tight- 1y when the Wall is stressed.

In testimony whereof I have affixed my sig nature.

J OSEF MEISER. 

